Cyetjs btjssey



rrnn ATENT rricni RUPER'I GREVILLE-IVILLIIXMS, OF ALBANY, N E'W YORK, ASIGNOR TO THE ALBANY COAL TAR DYE AND CHEMICAL COMPANY, OF SAME PLACE PROCESS OF MAKING DYES.

SPECIFICATION forming part of Letters Patent No. 412,149, dated October 1, 1889.

Application filed June 6, 1889. Serial No. 813,387. (No specimens.)

To all whom it may concern:

Be it known that I, RUPERT GREVILLE- WILLIAM, a subject of Her Majesty the Queen of GrcatBritain, and residing at the city of Albany, in the county of Albany and State of New York,.have invented certain My invention relates to the production of new coioring-matters,wl1ich dye unmordanted cotton in an alkaline or soap bath, and which eoloriugpmtters are obtained by first combining one molecule of a tetrazo compound with one molceuleof one of 'thc herein-mentioned phenols or amines, and then combining this intermediatl product with one molecule of the alkalizel acids of the orchilla lichens or compounds of the same. The alkalized acids referred to can be prepared by treating the orchilla Lchcns for a short time 2 5 with water in the presence of lime, and after filtering precipitating the orselliuic and other acids by means of hydrochloric acid. The acids of the lichcnsthus obtained in the form of a jelly are filtered oil and dried at a low 0 temperature. They are then boiled with various alcohols to produce the corresponding alkalizcd derivatives- The alkalized acids may be as well prepared by treating the lichens directly with the alcohols.

5 I do not bind myself to these or any other methods for producing the ulkalizcd lichen acids, as my invention does not relate to their production but to the colors produced by their use. I

My tetrnzo compounds I mean tcUazo-(iiphenyl and its homologues, llQtllLZO-llRPlltllalone, teLram-stilbeuc, tetraZo-fluorene, tetrazodiphcuyl ether, tetrazo-azo benzolc and its honiologucs, tetrazo-oxydiphenyl, as well as the alkalizod compounds or the sulpho or carbo acids of the same.

The phenols an d amines I have successfully used up to the present time in this process are the sulpho-acids of the naphthylamines,

as usual.

the naphthols, monoethylaniliue, diphenyl- 5o mine, salicylic acid.

The following examples will be sufficient to show how I practically carryout myinvention.

Example N0. l.30.2 pounds of tolidine sulphate or its equivalent of the base are con verted into the tetrazo compound in the usual man ner. This solution is then run into twentyeight pounds of alpha-naphthylamine, monosulpho-acid soda salt, and thirty pounds of acetateof soda dissolved in one hundred gallons of water. The mixture is Well stirred, and when all the tetrazo compounds are combined this intermediate product is run into a solution of 18.2 pounds of the methylated lichen acid and one hundred pounds of caustic soda. The color thus formed is treated It is a blue shade of red and has the following formula:

0 1th itc n mnpsopx,

Example N0. 2.The twenty-eight pounds of naphthylamine sulpho-acidin Example So. 7 5 1 can be replaced by 13.3 pounds of salicylic acid. In this case an alkali must be used in the place of the acetate of soda. The shade thus produced is a ycllower shade of red. Now, hin ingdescribed my invention, What I claim is The process for the production of mixed coloringnnatters by first combining one molecule of tetrazo-diphenyl or one molecule of one of the other IIQIClIl-lllGlltiOllGd tetrazocompounds with one molecule of one of the hereinmentioned amines or phenols and then combining this intermediate product with one molecule of an alkalized acid of the orchilla lichen or halogen or sulpho compound of the same, substantially as set forth.

In witness whereof I have hereunto set m .hand this 3d day of June, 1889.

RUPE R'l GRE lrlLLE-WILLIAMS.-

Witnesses:

HOWARD S. NEIMAN, R. A. SHAW.

Corrections in Letters Patent No 412,149.

upon the application of Rupert Greville-Vxilliams, of Albany, New York, for an im- It is hereby certified that in Letters Patent No. 412,149, granted October provement in Process of Making Dyes, the Word alkah'zed Whefever it appears throughout the printed specification and claim should read alkylzed; and that the said Letters Patent should be read with these corrections therein that the same may j conform to the record of the case in the Patent Office.

Signed, eountersigned, and sealed this 22d day of October, A. D. 1889.

[SEAL] GYRUS BUSSEY, 7 Assistant Secretary ofthe Inier-ior. Countersigned:

U. E. MITCHELL,

Com m Iss2 012er of Patents. 

